Home / 1,528,868.23-2,109,839.51-840,551.80

Finding the Fourth Proportional to 1,528,868.23, 2,109,839.51 and 840,551.80

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Solution

The fourth proportional to 1,528,868.23, 2,109,839.51 and 840,551.80 is: 1,159,962.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,868.23 : 2,109,839.51 = 840,551.80 : x
  2. Step 2: Convert to fraction form
    1,528,868.23/2,109,839.51 = 840,551.80/x
  3. Step 3: Cross multiply
    1,528,868.23x = 2,109,839.51 × 840,551.80
  4. Step 4: Simplify right side
    1,528,868.23x = 1,773,429,397,841.62
  5. Step 5: Solve for x
    x = 1,773,429,397,841.62/1,528,868.23
  6. Step 6: Final answer
    x = 1,159,962.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.